Don't think about de-friending Facebook quite yet users. Even though your obsessive ways with checking on the site every hour wouldn't allow you to do such a thing anyway.
The Wall Street Journal has been researching how companies use databases in order to track potential employees online and found on the way that Facebook user's aren't hard to find. Applications on the site can be used as a gateway to send the user's name to dozens of Internet and advertising tracking companies. In other words, un-tag that photo immediately!